His most recent reversal came last week, when a U.S. Treasury report declined to name China as a currency manipulator despite Trump's repeated promises to formally accuse Beijing — a signature pledge during his campaign trail.

So, what could Trump backtrack on next? One analyst said he hopes it will be the Trans-Pacific Partnership, the world's largest trade deal that Trump withdrew from in January on the claim that it would hurt U.S. manufacturing.

"Whoever thought that Trump would let China, a rival, off the hook on currency? If he can do that with a country that's clearly not a friend, maybe he could reconsider reversing himself on TPP for a friend like Japan," Sean King, senior vice president of Park Strategies, told CNBC on Tuesday.

Trump still has time to change his mind on TPP, King warned, noting that the treaty text remains valid until February 2018.

"Trump said [TPP] was a disaster, but I'm sure the other members would be willing to make concessions to get the U.S. back in, just like South Korea was willing to make concessions to Obama for his endorsement of the U.S.-Korea [free trade agreement]," King said.

Brendan Smilalowski | AFP | Getty Images

Japan's Prime Minister Shinzo Abe and US President Donald Trump wait for a meeting in the Oval Office of the White House on February 10, 2017 in Washington, DC.

"He's certainly made greater reversals and claimed victory. Why not do this for our friends who want to stand with us against countries like China and North Korea? I'm all for it."

"We [the U.S.] are trying to offer them a poor man's TPP with this FTA idea, but I don't think Japan has any interest in pursuing that. They want to stick with ideas and principles that were hammered out in TPP," said King, specifically referring to intellectual property rights as well as market access.

"I think Taro Aso is just going to hear out Pence to be nice to Trump...I don't expect much to come out of these talks, it's going to be a bunch of niceties but no real deliverables."